Chris M
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Post by Chris M on Jun 4, 2017 12:19:24 GMT
At one point last night, Bank, London Bridge and Borough stations were all closed (this thread is not for discussing why). Is this a situation the ATO can handle or did drivers have to drive manually through the area? I think I recall reading the Central line ATO can only supply information to the train about 1 closed station.
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Post by antharro on Jun 4, 2017 13:33:36 GMT
Not a definitive answer, but I would imagine there's some sort of station by-pass that can be programmed in. It's a newer system than the Central, so hopefully improved in that regard, so I don't see why it wouldn't be able to handle multiple closures. The auto-announcer might have more problems. While it can announce "the next station is closed", I doubt it could announce "the next three stations are closed". But given the circumstances I would expect the Train Operator to make manual announcements anyway.
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Post by Deleted on Jun 4, 2017 13:57:33 GMT
Good question, yes, Seltrac's ATO can handle three closed stations. The reason the Central can't is that, as we've been discussing, the train picks up all kinds of information about the road ahead through the PAC (Platform ATO Communications) loops when stopped at each station. This information includes things such as the gradient profile, the distance to the next stations' stopping points, block section lengths and so on. This information is for the next two stations only, so if a train is at Liverpool Street eastbound, it will have enough information to get to Mile End. If the train needs to non-stop Bethnal Green, no problem. But if the train needs to non-stop both, the ATO would run out of information at Mile End and wouldn't be able to get to Stratford without stopping, so drivers have to drive it themselves because they do not forget the road after every station  |
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Post by up1989 on Jun 4, 2017 14:04:50 GMT
Seltrac can Handle multiple closed stations as the loops in the 4ft are constantly communicating with the train. The TOD (Train operators display) will say "Skip next station" and the train will carry on thru the closed station at a maximum speed of 18mph. Often the controller will put in ANP (Auto not permitted) as there might be a risk of people standing close the the platform edge expecting the train to stop. As far as last night I believe at least Bank was Approach In PM (Protected manual) as the station still had passengers on the platform.
CELIA (the auto announcer) has to be cancelled otherwise she will start saying her spiel about connections at the station etc... The driver just has to push the PA button and it will keep her quiet and the driver will have to make an announcement regarding why the station is shut.
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Post by trt on Jun 4, 2017 20:49:55 GMT
Is it not the case that two consecutive closed deep level stations requires that the line shut down? i.e. trains in service cannot proceed into a section where this condition exists because of evacuation requirements, though trains already in such a section may proceed until they are clear?
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Post by Deleted on Jun 4, 2017 20:59:12 GMT
Is it not the case that two consecutive closed deep level stations requires that the line shut down? i.e. trains in service cannot proceed into a section where this condition exists because of evacuation requirements, though trains already in such a section may proceed until they are clear? I've heard talk of a rule like this, as well, but if there is such a rule, it's certainly more than two stations |
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Chris M
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Post by Chris M on Jun 4, 2017 21:03:30 GMT
A station may be closed but still able to handle an emergency evacuation, e.g. I suspect that at Bank last night it would have been possible to evacuate a train load of people via one of the northern exits or via a train on a different line had the need arisen.
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Post by MoreToJack on Jun 4, 2017 21:35:36 GMT
Is it not the case that two consecutive closed deep level stations requires that the line shut down? i.e. trains in service cannot proceed into a section where this condition exists because of evacuation requirements, though trains already in such a section may proceed until they are clear? This rule was withdrawn some years ago. It's come up quite a lot in recent times due to the station strikes (most recently in January), but no-one can actually find reference to it in current rulebooks. I think we had a discussion here around that time. Bank's closure was by police request, and largely to stop more people entering what was a very congested area, which is why the station initially re-opened as entry only. The Northern line was briefly suspended on the Bank road. |
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Post by Deleted on Jun 5, 2017 20:45:14 GMT
There is always concessions the service control can put in once signed by a few higher management types
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Post by crusty54 on Jun 6, 2017 1:01:12 GMT
I was working at Maryland station on Saturday night.
A lot of people from the Depeche Mode concert at the London Stadium were struggling to get to their destination having been told that the Central line was not running.
The electronic service update board showed severe delays but several people said that they couldn't get into Stratford station for the Jubilee line.
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